脱墨浆造纸废水处理污泥上浮问题解决实例

脱墨浆造纸废水处理污泥上浮问题解决实例第3l卷第4期2011年4月工业水处理‘IndustrialWaterTreatmentV01．31No．4Apr．，2011脱墨浆造纸废水处理污泥上浮问题解决实例张安龙，潘洪艳，樊砥钢(陕西科技大学，陕西西安710021)f摘要】针对脱墨浆造纸废水处理沉淀池发生污泥上浮现象，从温度、pH、致毒性底物、食微比、溶解氧等因素进行了分析，得出曝气量过大污泥会被打得又轻又碎，引起污泥上浮。提出了减小曝气量、增大营养盐投加比等有效的解决措施。【关键词】改良式氧化沟；污泥上浮；溶解氧[中图分类号】X793[文献标识码]B【文章编号】1005—829X(2011)04-0079-03Solutiontothesludgefloatingproblemsforthetreatmentofdeinkedstockpaper-makingwastewaterZhangAnlong，PanHongyan，FanDigang(ShaanxiUniversityofScience&Technology，Xi’an710021，China)Abstract：Aimingatthesludgefloatingphenomenontakenplaceinthesedimentationtankwhilethedeinkedstockwastewaterisbeingtreated，thefactors，such8t8temperature，pH，toxicsubstrate，F／M，dissolvedoxygenhavebeenanalyzed．Itisconcludedthatthesludgewillbelightenedandbrokenbytheexcessiveaeration，causingthesludgefloating．Reducingtheaerationrate，increasingnutrientsaltdosageratio，andothereffectivemeasuresaleproposed．Keywords：improvedoxidationditch；sludgefloating；dissolvedoxygen．驰．‘IL．簟4．．和L．“．和土-．叱．轧．‘t．耻．和上。．●1．J吨。．函正．．●^。——L．●上。．址．